Prestigious Optical fiber, Multi core glass connectors, triple shielding, TwirlFix® metal plugs. Developed to retain all the sound richness of digital sources, the "Crystal Real Cable" optical fibre uses the best of optical conductors : glass fibre (multi-core configuration). These multi-strands give a more flexible cable and excellent bending resistance. With its Toslink "TwirlFix" anodised metal plug that rotates through 360°, connection between equipment is remarkably efficient and suits all applications.